As it is described on the Data storage and synchronization page, the Timetracker Cloud version using the Jira worklog objects and database. We only synchronize the work logs from your Jira Cloud Instance to our servers, in order to be able to provide high performance and fast response times in the Timetracker Application.
What you should do before migrating to the Cloud?
Enable feature flags for app migration in the server instance of Jira.
Use the following link to enable the Jira feature flag
Remove worklog visibility restrictions.
User and Administrator preferences/settings does not migrating yet. The Jira administrator should re-configure the Timetrackler Cloud app on the Global Settings according to the server version.
Users should also re-configure their preferences in the User Settings. The new user wizard will help them with it.